Biology, 17.12.2020 18:40 wrerteteT2827
A certain strain of bacteria used to be susceptible to penicillin. Today, that strain is resistant to penicillin. Which best explains this
observation?
A. The bacteria needed to become resistant to survive.
B. The mutation rate in the bacteria population greatly increased.
C. The isolation of the strain caused it to become resistant.
D. A mutation occurred and was passed to future generations.
Answers: 2
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Radiometric dating is used to tell the absolute age of materials by studying the decay rate of radioactive isotopes. the decay rates of isotopes are constant and are expressed as .
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Omg substrates with the same size and shape as the active site will bind to the enzyme. why is the key labeled the “bad” substrate?
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A certain strain of bacteria used to be susceptible to penicillin. Today, that strain is resistant t...
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